Machine for cutting weft pile fabrics.



PTENTBD mm1, 1.90m

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.MACHINE PoR CUTTING WEET PILE FABRICS.

APPLIOATI''N ri'Lm snrT. 2a, 1904.

s SHEETS- anim 1.

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No., 827,430. PATENTED JULY 31, 1906.

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MACHINE FOR oU-TTING'WEFT' MLB FABRICS'.

A.PPLIOATIONFILED BEPT.23,41904.

5 SHEETS-SHEET 2.

PATENTED JULY 31, 1906.

I, .QQDRBK IMmmm Fon CUTTING WEFT PILE FABRICS'.

Lurmouxon H'Lzz'p ssn'. 2a. 1904.

s annu-snm' a.

FE1-nw co., wAsHlNamnr, n. c.

N: PATENTEDJULY 3l, 1906,.

MACHINE POR CUTTING WEFT PILE FABRICS.

APPLIOATIUN FILED SEPT. 2 8, 1904.

s SHEETS-snm 4.

v No. 827,430. l. l* V I PATENTED .JULY BI, 1906.

o pREY.

MACHINE IORAGUTTING WEI'T PILE FABRICS.

\ Brummen FILED sBP'rQza, 1-904. l

` 5 SHEETS-SHEET 5.

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. I narran PATENT ormoni.

OSCAR naar, n voFsoUTH REDDISH, .NEAR sTooKPoar; ENGLAND. f

MACHIN'r-l-o'n GUT'TIN'G. wl-:FT PILE'FABRICS.

Belit known that I, OsoAR DREY, a subject vof the King of Great Britainand Ireland, and

aresident of SouthR'eddi-sh', near Stock ort,

England,have invented new and usefu Improvements in and Relating to Machines and r,Appliances for Cutting Weit Pile Fabrics," of

ch the following is aspecification. s These im rovementsj yrelate to lweft-pilecutting mac nes, andfp'rincipally to those in "which the fabricv is operatedA uponin anendy less condition and in which the cloth'atsome 'point isdisposed, arranged, or allowed to fall 1n folds, p'laits, loops, or the like. One rform of such a machine is describedin the specifi-l cation to British Letters kPatent No. 8,906,

' granted to.V melandl dated'theZStliY of prih fabric initseoiirs'e through the machine and cated by similar characters 'ofreference Where The chief objectA of thisinvention is to pro- Avidesimple and eflicientmeans for maintainingk andeffecting a steadyf Ytension in the in the process of pile-cutting. l

In t e'prior machine referred to the vcloth is also folded in laits by a pendulumear'm: 1), vover a trianguar arrangement of staves or rollers 21, over and down eachside ofwhich:

theplaits hang. On vone side the plaits va: are engaged by a vdrum 34,'Which rotates in the oppositedirection to the hands of a clock lafter referredl to, similar yparts beingfindivthey occur in the d ierent iigures.

.Figure 1 is a side viewV of the vcomplete maf Y chine.

. 45y 'for drivin it,

Figs. 2, 3, 4, and 5 illustrate a roller for maintaining tension' inthe cloth and devices y Figs..6, 7, and 8 are views of the pendu lim-arm plaiting device and its acv cessoriesand Figs. 9 and 10 areviews of the vimproved knife.

5o. y l s y s clearly shown in Figs. 1, 6,'v 7, and 8 z(the According to this present invention and as three latter iigures being drawn to a 'large `vscale)"the roller ,or stavey a, over which theclothpasses to the plaiting or like device, is

attached to the pendulum orswing-arm I)KA at A Specification of Letters Patent. y Appunti@ tied september 23, isoifser'ial N01. '225.567'.

y.a point below*` thev pivots Thisfroller or i Pateatea Juiy 31,1906.`

stave a is mounted in bearings b4,- which are v iiXed to bracket b2 bymeans of screws b5', the

.braekets-beingiixed in the slots b of the peil'-` `dulums bby meansof screws b3, so that the offf positionof the roller or stave al maybe varied f or adjusted until a constant tensionpon the cloth during ythe movement of the'swinging frame is obtained.V l n l The cloth, as at ,after being-taken out of the folds for vfurther cutting passes around and with adrum or rollerd, (see Figs. 1, 2, 3,

`4, and 5,) which is drivenpositiveiy byteit lor other gearing at a uniform speed, which is never in excess of the'. speed of the cloth on its y"way to the knife on the upper art of theV ma# chine or of the speed of the-rol er or rollers'by which thel cloth is being taken u "after the.

Icutting of the pile and is'prefera ly less, soy

that a constant tension commensurate ywith its elasticity is exerted u on the cloth'which is Vbeing delivered/to ,t e knife.

trated inFigs. 1 and 2,lthef rollerd may bei;

driven from4 any convenient shaft 'or pulley in the-machine by meansof the belt c, and a and out of gear. n

` If desired andas illustratedby Figs. 31and 8ok pulley-driven friction-clutch for fast and]` oose pulleys or other equivalentjdevce may be'employed bymeans ofwhic'h the 'posi- `tively-driven'tension-rollerfmay be thrown inl 'i of the drawings, speed-changewheels g gf lg2` `may be interposed between 'thedriven frotion-:clutch and `the positively-driven ten-4 sion-roller d, sotha't the latter may be set to may be provided, sothatfthe cloth passes y. over, around, or'between them on its`wayv ,from'the folds to the' tension-roller d. f Suitl abledevices maybe employed to throw the chine is slack orwhenv the tension-roller d has run atfany :desired speed. .',Tension-staves h V95 friction-clutch f or the like outof gear when the cloth passing along the top ofthe 'fina--v delivered more cloth than the takingup i rollers have taken up. Sucha device,l byy means of .which the slack in thevk cloth is taken upand the clutch maybe operated, consists ,clothes passes and which is maintained'in its roo `ofa[vertically-moving drop or jockeyl roller4 l' v y', (see Figs. (l, 3, a11d'5,)V under which'the, K s ,105 n highest position bythe pull of the cloth when the ,latter is traveling normally through the fma'chine; When the Yroller?l is in its highest position, a suitable rod c'or other part at-v tached to or moving ywithit comes against,

:lido i I and raises or maintains in its highest position one end of a two-armed lever l, the other end of Which engages With and depresses the upper arm of a cranked lever m, the lower end of Which operates a muif or the like and keeps the clutch in engagement, so that the tension-roller d is positively driven.

Should the cloth at any time ybecome slack-as, for example, upon the reversal of the machine-the drop-roller j descends or falls in suitable guides or4 grooves in which it is placed in the frame of the machine, and the connected or engaged part of the lever -Z moves With it or is moved downvvard by Weights, springs, or equivalents. The lever fm' correspondingly moves, a spring n being employed to' assist or insure this movement, if desired, and the clutch f is Withdrawn `or made free, and the roller d stops or ceases to be driven. A brake o may be disposed to' engage `vvith a convenient part attached to the positively-driven tension-roller d and is adapted to be operated through connections p from the treadle or handle of the machine and 'to `be fput on When the machine is v stepped and to be released When the machine is started. When the latter operation is effected, slack is Afirst taken up in the clothin the upper part of the machine and the jockeyroller j is raised 'to its highest Working lposition, s0 that it again raises the end of the lever Z and puts the clutch f in action, so that the tension-rller d is again positively driven.

Instead of positively 'driving thete'nsio'nrcller in the manner hereinbefore described vand frein one cf the ordinary .or taking-up rollersit may be driven by or from the fabric 9c itself after the latter has passed around the tensionroller d and before it has arrived at the taking-up rollers. Such an arrangement is shovvn in Fig. 5, Where the shaft on the drum or roller 1, over Which the cloth passes onits Way to the jockey-roller is furnished vvith a tocthed Wheel vvhich gears through `other vvhee'l or Wheels s with a vvheel attached tdthe 'clutch f, so that the positive tensionroller d is rotated as a consequence of the rotation ofthe drum r' up'on the passage o'f the @16th. other' methods of transmitting the rotation cf the cloth-driven roller to the positive tension-roller than by gear-Wheels may be adopted, ifdesired, and the cloth-driven roller may be l dinerently placed. The chan e-vvheels illustrated in Figs. 3 and 4 may 'e used, if desired. When the positive tensin-'rller is driven from or by the cloth itself, the clutch f may be dispensed With. The surface of the positively-driven tensinro'llerjd may be rcughened, corrugated, nuted, cr othervvise similarly formed to vincrease the grip'of the cloth o'r its gripupon the cloth, or it may be coveredor coated With a fabric or suitabler frictional substance for the sar'ne PHP'OSQ T'o obtain greater simplicity andlightne'ss in the knife and its accessories, the rack usually attached to or combined With the handle is dispensed With, and the pawl which has hitherto been secured to the carriage or slide is now attached to a bridge-piece which extends across the handle or is otherwise so mounted that it falls into the path of the carriage. A knife so fitted is shown in Figs. 9 and 10, respectively in plan and sectional side elevation, t indicating the slide or carriage carrying the knife and u the handle. As Will be seen, a payvl v is mounted upon a bridge-piece w on the handle in such a manner that it falls into the path of the slide t, Which is provided With means-as, for example, the holes y-for engagement with the paivl v when the knife is released and slides into the handle, or the pavvl may engage With th'e end of otherpart of the carriage. More than one such bridge-piece and patvl may be employed in connection With the handle. The remainder of this knife is of the usual construction.

It is provided With a blade 1, hinged to the slide t, which slide is normally locked in place in the handle u by a pin 2', pivoted to an arm 3 of Aa lever mounted on a bracket 4 on the side of the handle. The other arm of this lever is attached by a connecting-rod 5 to a crank-arm secured to the l'ivoted plate 6. Should `the knife accidentaliy penetrate the cloth, the cloth comes up against the plate 6 and moves it away from underneath the pivoted knife-blade l. The blade is thus free to fall to the position slotvn in dotted lines in Fig. 10, and the operative parts connected to the pivoted plate 6 are moved tothe positions shown by dotted lines in Fig. 9, and the pin 2 is Withdrawn from the slide t, and the latter is free to move along the handle. l

l Having novv described my invention, what I claim, and desire to secure by Letters Patent, is-

` 1. In a Weft-pile-cutting machine,the combination of a positively-driven tension-roller, a clutch by means of Which such roller may be thrown in or out of gear, and a jockey or drop roller actuated by the cloth and adapted to operate lor permit the movement of the clutch,A all substantially as hereinbefore described and as illustrated by the accompanying drawings,

2. In a Weft-pile-cutting machine,the combination of a positively-driven tension-roller, a clutch by means of which such roller may be throvv'n in or out of gear, a ockey or drop roller vactuated by the cloth and adapted to operate or permit the movement of the clutch and a brake, all constructed arranged and operated Substantially as heieinbefor'e described and as illustrated by the accompanying drawings.

8. In a Weft-pilelcutting machine, the combination of a positively-driven tension-roller, speed-change gearing therefor, a clutch by means of which the tension-roller may be IOO IOS

IIO

ma V

throWn into or out of gear, and a jockey or machine, comprising a slide or carriage, a drop roller bearing against the cloth and con-v Vhandle having a bridge thereon, a paWl pivr 5 nected to operate said clutch. oted on said bridge, and arranged to engage 4. In a We't-v ile-cutting machine, a swin with the slideor carriage, as and for the pur- 5 arm -or pendu um, means for feeding clot pose set forth.

thereto in a linebelow its axis of oscillation,` a In testimony whereof I have signed -my stave or roller mountedin slots in said arm name to this specification in the presence of 2o beneath its axis, and over which Vstave the two subscribing Witnesses.- entering cloth is led, and additional rollers at 1o the end of the arm through which the cloth Y v f OSCAR DREY- Passes, and by means of which the cloth is de= Witnesses: ivered in plaits-.vVA r 'MALCOLM SMETHURsn 5'. A knifefor 4use a Weit-ilewutting WARREN. 

